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Stockholders’ Equity and Stock-Based Compensation - Stock Option Activity (Details) - Equity Incentive Plan
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 26, 2020
USD ($)
$ / shares
shares
Options Outstanding  
Outstanding, beginning of period (In shares) | shares 361,769
Options exercised (In shares) | shares (205,769)
Outstanding, end of period (In shares) | shares 156,000
Exercisable (In shares) | shares 156,000
Weighted Average Exercise Price  
Outstanding, beginning of period (In dollars per share) | $ / shares $ 8.35
Options exercised (In dollars per share) | $ / shares 8.32
Outstanding, end of period (In dollars per share) | $ / shares 8.38
Exercisable (In dollars per share) | $ / shares $ 8.38
Additional Disclosures  
Outstanding, weighted average remaining contractual life 1 year 4 months 20 days
Exercisable, weighted average remaining contractual life 1 year 4 months 20 days
Outstanding, aggregate intrinsic value | $ $ 2,427,060
Exercisable, aggregate intrinsic value | $ $ 2,427,060
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number | shares 156,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price | $ / shares $ 8.38
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 1 year 4 months 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value | $ $ 2,427,060